Trump is set to debate his Democratic opponent, Hillary Clinton, on Sept. 26. When it happens, Goodall told The Atlantic she’ll be thinking of “Mike,” a chimpanzee she studied that displayed dominance by kicking kerosene cans, creating a racket that sent would-be challengers fleeing.

Whether his strategy includes childish tidbits has yet to be seen. Tony Schwartz, co-author of Trump’s book The Art of the Deal, however, bets it will.

“Trump has severe attention problems and simply cannot take in complex information — he will be unable to practice for these debates,” Schwartz told the Times. “Trump will bring nothing but his bluster to the debates. He’ll use sixth-grade language, he will repeat himself many times, he won’t complete sentences, and he won’t say anything of substance.”